Answer:
Structurally, the ribosome comprises of two major parts: The small ribosomal units and the large ribosomal units. Each unit contains ribosomal Ribonucleic acid molecules, which is usually one or more than one called rRNA. Each unit also contain ribosomal protein, rproteins. Each of these components are very important for the translation of messenger RNA into proteins encoded by the RNA.
Explanation:
The ribosome and its components are generally referred to as translational apparatus. The small subunit of the ribosome is effective in reading the codes encoded on the mRNA, which . The large subunit is needed to actually join the amino acids needed to form the right protein (or polypeptides). The proteins within the ribosome is used to act as a scaffold that only aid the ribosome ability to form polypeptides.
Since both prokaryotes and eukaryotes are constantly forming proteins using the amino acids they accumulated through nutrition, therefore, both groups possess ribosome. However, the percentage of rRNA and protein in each group differs. For prokaryotes, the rRNA to protein ratio is close to 2, while in eukaryotes like human is close to one.
For the transport of metals across the fluids and the body membranes, the intracellular potential is needed. But sometimes due to the toxicity of lead, the process is affected especially in the digestive tract.
How bioaccessibility of lead is affected in the human digestive tract?
Both the organic (tetra alkyl lead) and inorganic forms of lead have been demonstrated to be extremely hazardous in experimental studies. This lead absorption, which typically occurs by inhalation or food contamination, is influenced by variables including absorption rate, particle size, and solubility. The majority of the lead that is inhaled is in tissues that contain minerals. Following speciation, Lead's binding power increases in comparison to Zinc and Calcium, which has an impact on fluidity. Lead's bioavailability seems to be reduced when food is present. The concentration of lead may also be reduced by pyromorphite. Since solid state speciation happens when the pH is between 6 and 7, Now, this results in a change in circumstances from the stomach to the intestinal tract, leading lead to transform into lead phosphate, which is less soluble and reduces bioaccessibility.
To know more about bioaccessibility visit:
brainly.com/question/15194038
#SPJ4
Seedless nonvascular plants reproduce asexually through fragmentation. The parent organism are divided in fragments and these fragments or pieces grow into fully developed organisms. Plants like liverworts and lichens reproduce through this method.
Answer:
lg3algeagl3al4ya5suh4smgeamgea5ri5iedyn6kiikeikke5jwuke5 and and rest k8k8eki6e6ke6ikekr6i6iek6ikik6e6r
None of the above ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️